Keep cats active and appeal to their playful nature and love for swatting at things, with this great cat toy. It can be configured into multiple layouts, keeping its shape and form fresh and surprising for your cats. The track features peek-a-boo openings, where cats can easily tap through to the weighted ball zipping through the circuit. Various sections are elevated to give the ball more diverse movements, keeping cats playing for a long time.  Easy to assemble and clean.  The Catit Senses Wave Circuit will keep kitty entertained for hours.